Ilearn Science

What term describes the ocean at its lowest point on the shore?

• low tide

• high tide

• spring tide

• winter tide

How long does it take for the earth to complete its revolution?

• 24 hours

• 12 months

• 365.25 days

• 29 days

In what region of the earth's atmosphere is the harmful ultraviolet radiation filtered out?

• ozone layer

• solar winds

• greenhouse effect

• cloud storms

What is the completion of a moon's revolution called?

• lunar new year

• lunar month

• lunar eclipse

• lunar phase

Tags

NGSS.MS-ESS1-1

What is the amount of time it takes a comet to complete an orbit called?

• period

• revolution

• orbit

• circumference

Tags

NGSS.MS-ESS1-2

The type of tide that occurs when the gravitational forces of the sun and the moon work against each other, resulting in weaker tides is called _______.

• oxytide

• high tide

• low tide

• neap tide

Tags

NGSS.MS-ESS1-1

NGSS.MS-PS2-4

Little "planets" ranging in size from a few hundred miles across to the size of the house (most are found in a belt between Mars and Jupiter) are called _________.

• space junk

• asteroids

• comets

• dwarf planets

Tags

NGSS.MS-ESS1-3

Which is a group of asteroids found in the inner solar system that cross paths with Earth?

• comets

• near-earth asteroids

• Big Dipper

• shooting stars

Tags

NGSS.MS-ESS1-3

Pieces of space debris that are smaller than the smallest asteroids are called _______-.

• meteoroids

• baby asteroids

• space junk

• shooting stars